Before going on honeymoon we indulged in buying a pair of these headphones for on the plane. To say they worked was an understatement. My partner can't normally sleep on a plane but with these on he slept like a baby. Initially I have to say I was sceptical but they did actually work!. They come in a nice carrying case with a airplane double socket adapter so you can actually plug them into the airplane's own entertainment system. However you can also just put them on you head and flick the on switch at the side for peace and quiet, even screaming children were not audiable! The headphone themselves were comfortable although slightly heavy. A small price to pay in my view for a peaceful flight. Would never flight longhaul again without them. Whilst they are expensive they are still cheaper than a business class longhaul flight so a goof investment?